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appears a good deal earlier than " '90's "

likely somewhere between late 1960's and mid-1970's

note -

absence of bottle mount(s)

non-recessed brake mount

long dropouts

presence of housing stop for covered cable operation of front mech

presence of centrepull bridge; very latest for this feature on a machine with caliper brakes would be early 1970's

estimate that '74-'75 is the absolute latest it could be

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interesting to see that chainstays are rapier pattern

lug pattern is Prugnat S

crown appears Davis

shell appears BOCAMA professional

many of these were contract produced by small workshop operations

the experts may be able to tell how to determine the in-house products from the contracted one...

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